Fish Passage Improvement site 20501405

Fish Passage Site 20501405

Coordinates (dec. deg.): 62.22848°, -150.44498°
Legal Description: S025N006W30
Region: South Central
Road Name: Oil Well Road

Datum: NAD83
Quad Name / ITM: Talkeetna A-1
AWC Stream #: 247-41-10200-2081-3100-4163
Stream Name: Moose Creek tributary

Elevation:

Site Comments: SUSITNA RIVER WATERSHED, Moose Creek Bridge is about 300 feet northeast of site.

Multiple surveys have been conducted at this site — click on the drop down
arrow to the right of the survey date below to choose a different report for this site.

Survey PRK09-OWR05

site photos

Project Supervisor: Gillian O'Doherty, ADFG
Observers: Heidi Zimmer, Ben Histand

Overall Fish Passage Rating: Gray

Tidal: No
Backwatered: No

Step Pools:
Construction Year:

Site Observations:

Culvert gradient gray
Constriction ratio gray

Comments: Resurvey PRK041A042. u/s is rust-stained ditch along road w/ lots of slimy algae and coho fry. Probably not a barrier. **Updated site photos added from 9/7/16 site visit from Sampling Unmapped Streams in the MSB project. Fish sampling information added to AFFI.

Culvert Measurements

ID: 1

Structure Type: Circular pipe (Corrugated steel)

Fish Passage Rating: Gray

Length(ft): 47.6

Inlet Type: Projecting

Outlet Type: Projecting

Corrugation Depth(in.): 0.5

Corrugation Width(in.): 2.75

Condition Rating(1-5): 5

Approach Angle: 1.0

Sedimentation At Inlet: No

Inlet Substrate: None

Outlet Substrate: None

	Inlet	Outlet
Width(ft):	3.0	3.0
Height(ft):	3.0	3.0
Apron Length(ft):
Water Depth(ft):		0.44
Rustline Height(ft):	0.7
Substrate Depth(ft):	0.0	0.0

Backwatered?: No

Baffles Present: No

Embedded?: No

Outfall Height: 0.0

Outfall Type: At Stream Grade

Constriction Ratio: 0.75

Culvert Gradient: 0.55%

Max Slope:

Max Slope Length:

Culvert Observations:

Culvert gradient gray
Constriction ratio gray

Stream Measurements

Stream Substrates	Upstream	Downstream
Dominant:	Gravel	Silt/Clay
Subdominant:	Sand	Sand

Stream Slope(deg.):
Stream Flow Stage:	Medium

Stream Width Type	Distance From Crossing (ft)	Stream Width (ft)
Upstream ordinary high water	75.0	3.50
Upstream ordinary high water	110.0	4.00
Upstream ordinary high water	127.0	4.50

Elevations

Locator ID	Culvert Number	River Distance (ft)¹	Distance From Crossing (ft)²	Relative Elevation (ft)
Outlet Pool Water Elev	1			97.21
U/S Headwater	1			97.38
D/S Water Surface Elev (d/s WS)	1	0.00	95.0	96.93
D/S Water Surface Elev (WS @ GP)	1	64.00	31.0	97.48
D/S Tailcrest or 1st Thalweg	1	80.50	14.5	96.99
D/S Water Surface Elev (WS @ TWC)	1	80.50	14.5	97.20
D/S Thalweg (bottom of outlet pool)	1	91.00	4.0	95.92
Outlet Invert	1	95.00	0.0	96.77
Road Elev	1	118.50		101.88
Inlet Culvert Invert	1	142.00	0.0	97.03
U/S Grade Ctrl (Thalweg) (1st TC u/s)	1	173.00	31.0	97.30

Notes:

River distance is measured continuously throughout the survey reach along the thalweg of the stream.
Measured from each end of the crossing along the thalweg of the stream.